Free ntlm authentication software for windows

Microsoft Web Client NTLM Authentication Vulnerability Patch (Windows Me) MS01-001 is regarded as an innovative and versatile patch which eliminates a security vulnerability in a component that ships with Microsoft Office 2000, Windows 2000, and Windows Me.

The vulnerability could, under certain circumstances, allow a malicious user to obtain cryptographically protected logon credentials from another user when requesting an Office document from a Web server.

The Web Extender Client (WEC) is a component that ships as part of Office 2000, Windows 2000, and Windows Me. WEC allows IE to view and publish files via Web folders, similar to viewing and adding files in a directory through Windows Explorer. Due to an implementation flaw, WEC does not respect the IE Security settings regarding when NTLM authentication will be performed. Instead, WEC will perform NTLM authentication with any server that requests it. If a user established a session with a malicious user's Web site, either by browsing to the site or by opening an HTML mail that initiated a session with it, an application on the site could capture the user's NTLM credentials. The malicious user could then use an offline brute-force attack to derive the password or, with specialized tools, could submit a variant of these credentials in an attempt to access protected resources.

The vulnerability would only provide the malicious user with the cryptographically protected NTLM authentication credentials of another user. It would not, by itself, allow a malicious user to gain control of another user's computer or to gain access to resources to which that user was authorized access. In order to leverage the NTLM credentials (or a subsequently cracked password), the malicious user would have to be able to remotely logon to the target system.

However, best practices dictate that remote logon services be blocked at border devices, and if these practices were followed, they would prevent an attacker from using the credentials to logon to the target system.

Frequently asked questions regarding this vulnerability can be found here.

The Web Extender Client (WEC) is a component that ships as part of Office 2000, Windows 2000, and Windows Me. WEC allows IE to view and publish files via web folders, similar to viewing and adding files in a directory through Windows Explorer. Due to an implementation flaw, WEC does not respect the IE Security settings regarding when NTLM authentication will be performed ? instead, WEC will perform NTLM authentication with any server that requests it. If a user established a session with a malicious user?s web site ? either by browsing to the site or by opening an HTML mail that initiated a session with it ? an application on the site could capture the user?s NTLM credentials. The malicious user could then use an offline brute force attack to derive the password or, with specialized tools, could submit a variant of these credentials in an attempt to access protected resources. The vulnerability would only provide the malicious user with the cryptographically protected NTLM authentication credentials of another user. It would not, by itself, allow a malicious user to gain control of another user?s computer or to gain access to resources to which that user was authorized access. In order to leverage the NTLM credentials (or a subsequently cracked password), the malicious user would have to be able to remotely logon to the target system. However, best practices dictate that remote logon services be blocked at border devices, and if these practices were followed, they would prevent an attacker from using the credentials to logon to the target system. This download is for Windows ME (without Office 2000 installed).

The Message Level Authentication Thunderbird extension signs your sent messages with the Message Level Authentication Protocol Message Level Authentication authenticates mail from Message Level Network users, Mail Reputation provided by Sender Score for each message and Anti-Phishing Data from PhishTank.
When you register an e-mail address each messsage you send will be signed with the Message Level Authentication Protocol guaranteeing that you sent the message.
When using Message Level, your recipients will know that message came from you and will be dazzled with your certified image that you have set for that address. This image can be set in the My Account section of our web site.
Use these best practices to thwart spam and phishing attempts.
System requirements:
- Thunderbird: 2.0 ? 2.0.0.*

Windows NT Remote Registry Access Authentication Vulnerability has come as a helpful program to deal with a security vulnerability in Microsoft Windows NT 4.0. This vulnerability can allow access to the Registry from a remote computer. The remote computer must be authenticated by a remote Registry server before it can be processed. If a request is malformed in a specific fashion, the request is misinterpreted by the remote Registry server, causing it not to work.

Because the remote Registry server runs within the Winlogon.exe system process in Windows NT 4.0, a problem in that process causes problems with the entire system. Only an authenticated user can run such a request. An anonymous (or null-session) connection cannot cause this problem. You can place an affected computer back in service by rebooting the computer.

A supported fix that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem. If you are not severely affected by this specific problem, Microsoft recommends that you wait for the next Windows NT 4.0 service pack that contains this fix.